I've tried turning on ISI sensor correction at HAM 4 and 5, it seems to be working. At first I thought HAM5 was not working as well, but there must have been somebody out on the floor near the chamber, because now both chambers are performing similarly. Attached plots show only the CPS_X side of things, but the GS-13 plots weren't as clear and I'm not sure how to calibrate their signals so they line up with the STS, but GS-13's seem to agree in spirit. Correction also is working similarly in all degrees of freedom. I did this a while ago at HAM6 as well, but I don't think I saved the data. HAM's all use the same configuration with the Hua filters in X&Y and Mittleman's Z filter.